1. International Science and Technology Innovation Cooperation Base for Advanced Display Technologies of Hunan Province College of Semiconductors (College of Integrated Circuits) Hunan University Changsha 410082 P. R. China
2. State Key Laboratory of Chem‐/Bio‐Sensing and Chemometrics School of Chemistry and Chemical Engineering Hunan University Changsha Hunan 410082 P. R. China
3. Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
4. Material Innovation Research Center (MIRC) and Department of Advanced Material Science Graduate School of Frontier Sciences The University of Tokyo 5‐1‐5 Kashiwanoha Kashiwa Chiba 77‐8561 Japan
5. Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California at Santa Barbara Santa Barbara CA 93106 USA
6. Shenzhen Research Institute of Hunan University Shenzhen 518063 P. R. China